Lumen Technologies corporate office and headquarters are located in Monroe, Louisiana. Formerly known as CenturyLink, Lumen is now primarily an enterprise-focused digital networking company. This page provides the current corporate address and phone number, leadership and ownership information, CenturyLink and Quantum Fiber distinctions, enterprise-support routes, and guidance for escalating unresolved billing, repair, network, and service concerns.
Lumen Technologies Corporate Office and Headquarters
- Legal company: Lumen Technologies, Inc.
- Former corporate name: CenturyLink, Inc.
- Lumen corporate headquarters address: 100 CenturyLink Drive, Monroe, LA 71203
- Lumen corporate phone number: 1-318-388-9000
- Customer Advocacy Team: 1-318-388-9800
- Customer Advocacy email: ex**********@***en.com
- Enterprise sales: 1-800-871-9244
- Enterprise and wholesale support: 1-877-453-8353
- Official website: Lumen.com
- Stock symbol: NYSE: LUMN
The Monroe office is Lumen Technologies, Inc.’s principal executive headquarters. It supports corporate leadership, finance, legal, governance, network strategy, technology, public policy, investor relations, human resources, and other administrative functions.
The headquarters is not a retail internet office, technician-dispatch center, modem-return counter, equipment warehouse, public payment location, residential repair center, or walk-in Customer Service office. Do not bring routers, modems, network equipment, payments, account records, or legal documents there unless Lumen provides current written instructions.
Lumen Corporate Phone Versus Customer Support
The Lumen corporate-office phone number is 1-318-388-9000. This is a headquarters and administrative contact and should not be treated as a universal line for residential internet, enterprise repairs, invoices, technician appointments, outages, modem returns, cancellations, or Quantum Fiber accounts.
Lumen does not publish one telephone number that handles every customer and product. The correct contact depends on:
- Whether the account is Lumen, CenturyLink, Quantum Fiber, or another legacy brand
- Whether the service is residential, small business, enterprise, wholesale, or public sector
- The customer’s account and billing platform
- The service or circuit involved
- The country or region
- The terms of the applicable contract
Use the telephone number shown on the current invoice, service agreement, portal, repair notice, or account correspondence when it differs from a general number found online.
Lumen Customer Advocacy and Corporate Escalation
Lumen publishes a Customer Advocacy Team for customers who have already contacted Customer Service but require additional support:
- Customer Advocacy phone: 1-318-388-9800
- Customer Advocacy email: ex**********@***en.com
Customer Advocacy is an escalation route rather than a substitute for opening the original repair, billing, installation, or service ticket. Before escalating, obtain the applicable ticket, case, incident, order, or invoice reference number.
When contacting Customer Advocacy, include:
- Customer or company name
- General account type
- Service address or affected business location through a secure channel
- Service or circuit ID when applicable
- Billing or repair ticket number
- Dates of prior contacts
- Departments or portals already used
- Concise description of what remains unresolved
- The specific resolution requested
Do not send passwords, one-time verification codes, full bank or payment-card numbers, Social Security numbers, or unnecessary identity documents by ordinary email.
Lumen, CenturyLink, and Quantum Fiber Explained
Lumen Technologies
Lumen Technologies, Inc. is the public corporate company. It focuses heavily on enterprise, wholesale, government, network, cloud, security, voice, managed-service, and technology-infrastructure customers.
CenturyLink
CenturyLink, Inc. changed its corporate name to Lumen Technologies, Inc. in 2020. CenturyLink remains a customer-facing brand for many residential and small-business internet and telephone customers.
Readers needing residential CenturyLink headquarters, outage, technician, billing, cancellation, line-burial, or repair guidance should use the separate CenturyLink corporate office and Lumen headquarters page.
Quantum Fiber
Lumen completed the sale of its consumer fiber-to-the-home business in 11 states to AT&T on February 2, 2026. The transferred operation included Quantum Fiber networks and customer relationships in the affected states.
The current Quantum Fiber support system is operated under AT&T:
- Quantum Fiber support: 1-833-250-6306
- Published phone hours: Seven days a week, 7:00 a.m.–11:00 p.m. Central Time
- Quantum Fiber contact page: Quantum Fiber support
Customers should check the current bill, account portal, app, email notice, and service address to determine whether support is provided by CenturyLink, Lumen, Quantum Fiber, or AT&T.
Lumen’s 2026 Consumer Fiber Sale to AT&T
Lumen sold its mass-market fiber-to-the-home business in the following states to AT&T:
- Arizona
- Colorado
- Florida
- Idaho
- Iowa
- Minnesota
- Nebraska
- Nevada
- Oregon
- Utah
- Washington
The transaction did not constitute a sale of all of Lumen Technologies or every CenturyLink operation. Lumen continues operating as an independent public company and retains enterprise, wholesale, public-sector, backbone-network, legacy voice, lower-speed broadband, and certain remaining fiber operations.
AT&T should not be described as Lumen’s parent company. It purchased defined consumer fiber assets and customer relationships under the transaction.
Lumen Enterprise and Wholesale Support
Enterprise, wholesale, national-network, Ethernet, optical, wavelength, security, managed-service, voice, cloud-connectivity, and other business customers should normally use their assigned account team, customer care manager, Lumen Connect portal, service portal, or the applicable support number.
- Enterprise and wholesale repair: 1-877-453-8353
- Enterprise sales: 1-800-871-9244
- Lumen support directory: Product and account support
- Services and repair: Lumen repair support
- Customer portals: Lumen account and portal access
Some products use different technical-support or network-operation contacts. Follow the incident-escalation information in the applicable service guide, portal, contract, or support directory.
How to Report an Enterprise Network Outage
For an enterprise or wholesale outage:
- Confirm which service, location, and circuit are affected.
- Check the applicable Lumen portal for an existing incident or maintenance notice.
- Open a repair ticket through the portal, account team, or support number.
- Record the service ID, circuit ID, ticket number, and outage start time.
- Describe the affected sites, applications, telephone numbers, or users.
- State whether redundancy or backup service also failed.
- Document business, public-safety, healthcare, or government impact without exposing confidential information.
- Request the applicable severity or priority level.
- Follow the contract’s escalation matrix.
- Retain restoration times and post-incident communications.
Corporate headquarters does not dispatch field technicians directly in response to a public comment or ordinary switchboard call.
Business-Critical and Emergency Communications
A telecommunications outage may affect emergency lines, medical-alert systems, security systems, public-safety communications, business operations, or other critical services.
Do not rely solely on a public comment or email escalation during an immediate emergency. Use backup communications and contact emergency services when there is an immediate danger to life or property.
Customers operating critical services should follow their continuity, redundancy, and emergency-communications plans and use the contractual high-priority escalation route.
Downed, Exposed, or Damaged Lumen and CenturyLink Lines
Do not touch a downed, exposed, low-hanging, cut, or damaged communications line. A cable may be near electrical infrastructure or create a traffic, trip, access, or excavation hazard.
- Stay clear of the damaged equipment.
- Photograph the location from a safe distance when appropriate.
- Report the condition through the service provider’s repair system.
- Obtain a repair or safety ticket number.
- Contact local emergency services or the appropriate authority when the condition presents an immediate danger.
- Do not dig, move, cut, coil, or reconnect the cable yourself.
Before excavation, use the applicable utility-location service and comply with local one-call requirements.
Lumen Billing Contacts
Lumen’s billing contact depends on the account platform. Current official routes include:
- Legacy CenturyLink eight-digit LATIS billing accounts: 1-800-860-1020 or ca**********@***en.com
- Legacy CenturyLink nine-digit Ensemble accounts: 1-800-786-6272
- Legacy CenturyLink 13- to 15-digit CRIS accounts: 1-800-777-9594
- National wholesale accounts: 1-888-496-7447
Other enterprise products and platforms may use different contacts. Use the telephone number printed on the current invoice when available.
How to Dispute a Lumen Enterprise Bill
Before disputing an invoice, gather:
- Invoice number and billing period
- Account and service IDs
- Contract, order, and amendment information
- Installation and activation dates
- Disconnect or migration confirmation
- Usage records when applicable
- Credits and prior dispute references
- Payment confirmation
- Relevant service-level agreement
- Correspondence with the account team
- Identify each disputed charge separately.
- State whether the issue involves rate, usage, installation, construction, equipment, tax, termination, late fees, or service dates.
- Submit the dispute within the period required by the agreement.
- Request a billing case or dispute number.
- Ask whether the undisputed portion must still be paid.
- Keep written confirmation of any adjustment or credit.
- Escalate through the account team and Customer Advocacy if ordinary billing support does not resolve the matter.
Do not post a complete invoice, account number, network diagram, circuit identifier, tax ID, banking instruction, or contract containing confidential terms in the public comments.
Installation, Construction, and Buried-Drop Disputes
A construction or installation dispute may involve network-extension charges, special construction, inside wiring, buried drops, conduit, permits, right-of-way access, building access, or third-party contractors.
Before approving work:
- Request the scope of work in writing
- Ask which work is included in the quoted service price
- Request disclosure of special-construction charges
- Confirm who owns and maintains installed facilities
- Review cancellation and change-order terms
- Identify required landlord, easement, or property approvals
- Keep signed order and installation documents
When disputing an allegedly unauthorized charge, request the signed order, authorization record, work order, technician notes, construction estimate, completion record, and explanation of when and how approval was obtained.
CenturyLink Residential Support
Residential CenturyLink customers should use the CenturyLink support system rather than Lumen enterprise sales or corporate headquarters.
- CenturyLink residential support: 1-800-244-1111 when applicable
- CenturyLink Support Center: CenturyLink help
- CenturyLink contact and chat: CenturyLink contact options
- CenturyLink outage and troubleshooting: Available through the app, account portal, and Support Center
Support numbers may vary by region, service, and billing platform. Use the number in the customer’s account portal or current bill when it differs.
CenturyLink Modem and Equipment Returns
Do not mail a CenturyLink modem, router, power supply, or other equipment to Lumen corporate headquarters.
Use the official CenturyLink equipment-return process and keep:
- Return authorization
- Shipping label
- Carrier tracking number
- Equipment serial number
- Drop-off receipt
- Final account statement
Retain return records until the final bill confirms that the equipment was received and any associated charge was removed.
Lumen Ownership and Corporate Structure
Lumen Technologies, Inc. is a publicly traded Louisiana corporation. Its shares trade on the New York Stock Exchange under LUMN.
Lumen operates through subsidiaries and affiliated entities, including Lumen Technologies LLC, Level 3 entities, Qwest entities, and operating telephone companies. A contract or invoice may therefore identify a legal entity other than Lumen Technologies, Inc.
Identify the contracting entity before sending a formal notice, filing a regulatory complaint, or attempting legal service. The Monroe headquarters should not automatically be used for every subsidiary or contract notice.
Lumen’s Current Business
Lumen’s current services include:
- Enterprise internet and IP networking
- Ethernet and private networking
- Optical wavelength and high-capacity transport
- Network-as-a-Service
- Data-center and cloud connectivity
- Multi-cloud networking
- Managed network services
- Voice and unified communications
- Cybersecurity and DDoS mitigation
- Edge and hosting services
- Public-sector and government solutions
- Wholesale network services
- Remaining mass-market broadband and voice services
Lumen completed its acquisition of Alkira in July 2026, adding cloud-network orchestration capabilities for enterprise customers connecting multiple clouds, sites, partners, and AI workloads.
Lumen Leadership
- Kate Johnson: Chief Executive Officer
- Chris Stansbury: President and Chief Financial Officer
- Kye Prigg: Chief Commercial Operations Officer
- Ana White: Chief People and AI Enablement Officer
- Jim Fowler: Executive Vice President and Chief Technology and Product Officer
- General Kevin P. Chilton: Chair of the Board
Executive roles can change. Review Lumen’s official executive-management page and governance page for the current published leadership.
Lumen Board and Investor Contacts
Board correspondence
Stakeholders may contact the Lumen Board of Directors at:
Lumen Board of Directors
P.O. Box 5061
Monroe, LA 71211
Email: bo************@***en.com
The board-contact route is intended for governance and board-level matters. It should not be used as a shortcut for ordinary billing, residential repair, modem returns, technician appointments, or enterprise incident tickets.
Investor Relations
- Investor Relations email: in****************@***en.com
- Investor Relations website: Lumen Investor Relations
Investor Relations does not resolve residential, small-business, or enterprise Customer Service complaints.
Lumen Careers and Human Resources
Lumen does not publish the headquarters number as a dedicated public Human Resources line.
Applicants should use the official Lumen careers website. Follow the contact instructions connected with the applicable vacancy, application, interview, or accommodation request.
Current employees should use established manager, People, payroll, benefits, leave, union, safety, ethics, or employee-relations channels.
Do not publish Social Security numbers, employee IDs, tax records, medical documentation, pay statements, union records, background checks, immigration records, private manager information, or confidential workplace correspondence.
Lumen Ethics and Compliance
Lumen publishes an Integrity Line for employees and authorized workers to report suspected misconduct, retaliation, accounting concerns, security issues, or violations of company policy:
- Integrity Line telephone: 1-800-333-8938
- Integrity Line email: In***********@***en.com
- Web reporting: Lumen Integrity Line
The Integrity Line is not the correct route for an ordinary internet outage, billing dispute, modem return, residential installation, or service cancellation.
Regulatory and Outside Complaint Options
The appropriate outside route depends on the service and complaint:
- Federal Communications Commission: Internet, telephone, accessibility, billing, number-porting, or communications complaints within its jurisdiction
- State public utility commission: Regulated landline, service-quality, or utility matters where state jurisdiction applies
- State attorney general or consumer-protection office: Documented consumer concerns
- Local authority: Dangerous lines, rights-of-way, permits, code issues, or public hazards
- Card issuer: Unauthorized or unresolved posted payment-card transactions
- Contractual dispute process: Enterprise claims governed by a service agreement, arbitration provision, or negotiated dispute clause
Filing with a regulator does not replace emergency reporting, ordinary repair procedures, or the need to preserve contractual deadlines.
How to Escalate a Lumen Complaint
- Identify the correct company and brand: Determine whether the current account belongs to Lumen, CenturyLink, Quantum Fiber, AT&T, or another provider.
- Identify the service: Separate residential broadband, small-business service, enterprise networking, wholesale, public sector, cloud, security, voice, or another product.
- Open the original case: Use the correct portal, account team, support number, or repair process.
- Obtain a reference: Keep the ticket, incident, order, invoice-dispute, appointment, or case number.
- Document the timeline: Save invoices, contracts, work orders, emails, chats, outage records, technician notices, and payment confirmations.
- Request supervisor or account-team escalation: State what remains unresolved and the requested outcome.
- Use Customer Advocacy: Call 1-318-388-9800 or email ex**********@***en.com after ordinary support has not resolved the concern.
- Use formal contract procedures: Enterprise customers should comply with notice, dispute, and SLA deadlines in the applicable agreement.
- Contact headquarters only when appropriate: The corporate number is 1-318-388-9000, but the switchboard may refer the issue to the responsible support organization.
- Use regulators or outside remedies when appropriate: Choose the agency or process with jurisdiction over the specific service and issue.
Lumen Reader Complaint Theme
The visible reader submission on this page describes an alleged residential-service dispute involving slow internet, a proposed service change, technician work, buried-drop construction, disputed authorization and charges, and difficulty obtaining installation documentation.
This is one individual, unverified account. It does not establish that every Lumen, CenturyLink, technician, contractor, installation, or billing interaction has the same outcome.
A residential complaint should identify whether the current bill says CenturyLink, Quantum Fiber, AT&T, or another provider. Readers should avoid publishing private financial circumstances, full account information, service addresses, signatures, employee names, or sensitive contract documents.
Lumen Competitors and Related Companies
Lumen competes with telecommunications carriers, fiber providers, cloud-connectivity businesses, managed-network companies, cybersecurity providers, and digital-infrastructure operators.
AT&T is a separate telecommunications company and the purchaser of Lumen’s transferred consumer fiber-to-the-home business. AT&T did not purchase all of Lumen Technologies.
Verizon is a separate telecommunications and enterprise-network competitor. It does not handle Lumen, CenturyLink, or Quantum Fiber accounts.
Official Lumen and Related Resources
- Official Lumen website
- Contact Lumen
- Lumen support directory
- Lumen repair support
- Lumen customer portals
- Governance, board, and Customer Advocacy
- Lumen legal and compliance resources
- Lumen privacy resources
- Lumen Investor Relations
- Lumen careers
- CenturyLink Support Center
- CenturyLink contact and chat
- Quantum Fiber contact and support
Frequently Asked Questions
Where is Lumen Technologies headquarters?
Lumen Technologies is headquartered at 100 CenturyLink Drive, Monroe, LA 71203.
What is the Lumen corporate-office phone number?
The Lumen Technologies corporate phone number is 1-318-388-9000.
Is CenturyLink now Lumen?
CenturyLink, Inc. changed its corporate name to Lumen Technologies, Inc. in 2020. CenturyLink remains a customer-facing brand for many residential and small-business internet and telephone services.
Did AT&T buy Lumen?
No. AT&T purchased Lumen’s mass-market fiber-to-the-home business in 11 states. Lumen remains an independent publicly traded enterprise networking company.
Who owns Quantum Fiber?
AT&T acquired Lumen’s transferred consumer fiber business, including Quantum Fiber in the affected footprint, in February 2026. The current Quantum Fiber website and support system operate under AT&T.
What is the Quantum Fiber support number?
Quantum Fiber publishes 1-833-250-6306. Telephone support is listed as available seven days a week from 7:00 a.m. to 11:00 p.m. Central Time.
What is the Lumen Customer Advocacy phone number?
Lumen publishes 1-318-388-9800 for customers who have already contacted Customer Service but require additional support.
What is the Lumen enterprise support number?
Lumen publishes 1-877-453-8353 for numerous enterprise and wholesale repair and support routes. Some products use different numbers, so customers should verify the service-specific contact.
How do I contact Lumen about an enterprise outage?
Use the Lumen portal, assigned account or care manager, or applicable enterprise repair line. Record the service and circuit IDs, outage start time, affected locations, ticket number, and business impact.
What is the Lumen billing phone number?
Billing numbers differ by account platform. Eight-digit LATIS accounts use 1-800-860-1020, nine-digit Ensemble accounts use 1-800-786-6272, and 13- to 15-digit CRIS accounts use 1-800-777-9594.
How do I contact CenturyLink residential support?
Use the CenturyLink Support Center, app, account portal, chat, or 1-800-244-1111 when applicable.
Who is Lumen’s CEO?
Kate Johnson is the chief executive officer of Lumen Technologies.
Who is Lumen’s president and CFO?
Chris Stansbury is Lumen’s president and chief financial officer.
Who is the chair of Lumen’s board?
General Kevin P. Chilton is the chair of Lumen Technologies’ board of directors.
What is Lumen’s Human Resources phone number?
No public general Human Resources number was verified. The headquarters switchboard should not be labeled as HR. Applicants should use the official Lumen careers website.
Can I return a modem to Lumen headquarters?
No. Use the equipment-return process associated with the current CenturyLink, Quantum Fiber, Lumen, or other account. Headquarters is not a public equipment-return center.
Can I visit Lumen headquarters to file a complaint?
No public source reviewed identifies the Monroe headquarters as a walk-in complaint office. Begin with the correct support route and use Customer Advocacy for an unresolved escalation.
How do I write to Lumen’s board?
Board correspondence may be sent to Lumen Board of Directors, P.O. Box 5061, Monroe, LA 71211, or emailed to bo************@***en.com.
Why Trust CorporateOfficeHeadquarters.com?
CorporateOfficeHeadquarters.com reviewed Lumen Technologies’ current SEC-listed headquarters and corporate phone number, CenturyLink rebranding, enterprise and wholesale support directory, Customer Advocacy route, billing contacts, board and governance information, current leadership, 2026 AT&T consumer-fiber transaction, remaining mass-market operations, Quantum Fiber’s current AT&T-operated support, July 2026 Alkira acquisition, careers and ethics resources, existing image, related internal pages, and the visible reader submission.
We distinguish Lumen’s Monroe corporate headquarters from CenturyLink residential support, Quantum Fiber, AT&T, enterprise account teams, repair operations, billing platforms, network technicians, Customer Advocacy, Investor Relations, board correspondence, and the Integrity Line.
CorporateOfficeHeadquarters.com is independent and is not affiliated with Lumen Technologies, CenturyLink, Quantum Fiber, AT&T, Level 3, Qwest, any technician or contractor, a customer portal, billing provider, regulator, union, or related entity.
Page Update Note
This page was substantially revised on July 27, 2026. The update verified Lumen Technologies’ Monroe headquarters address and corporate phone number; removed an unverified universal Customer Care number; added the official Customer Advocacy phone and email; distinguished headquarters from enterprise, wholesale, CenturyLink, Quantum Fiber, billing, repair, board, investor, career, and ethics routes; clarified CenturyLink’s status as Lumen’s former corporate name and a continuing customer brand; added the February 2026 sale of consumer fiber assets in 11 states to AT&T; clarified that AT&T did not purchase all of Lumen; added current Quantum Fiber support and ownership context; updated Lumen’s enterprise-focused operating strategy, July 2026 Alkira acquisition, public-company structure, and leadership; expanded enterprise outage, billing, installation, equipment-return, line-safety, regulatory, privacy, and complaint-escalation guidance; differentiated this page from the existing CenturyLink article; reviewed and sanitized the visible reader complaint theme; retained and recaptioned the accurate generic image; narrowed the competitor section; and added current official resources and headquarters-focused FAQs.
Disclaimer
This page is provided for general corporate-office, telecommunications, network, billing, contact, and consumer-feedback information. CorporateOfficeHeadquarters.com does not represent Lumen Technologies, CenturyLink, Quantum Fiber, AT&T, Level 3, Qwest, any operating telephone company, technician, contractor, account manager, union, regulator, card issuer, or government agency.
Addresses, telephone numbers, account systems, support portals, ownership of particular assets, service territories, leadership, products, billing routes, contracts, network operations, and escalation procedures may change. Verify current information through the account portal, invoice, contract, official service provider, or regulator responsible for the matter.
Nothing on this page is legal, financial, investment, employment, cybersecurity, engineering, telecommunications, regulatory, contract, or emergency-response advice. Enterprise customers should review their agreements and seek qualified professional guidance when formal rights, claims, deadlines, or business-critical systems are involved.
Share Your Experience
Readers may share a firsthand Lumen experience in the comments. Helpful submissions identify whether the matter involved the Monroe headquarters, Lumen enterprise or wholesale service, CenturyLink residential service, Quantum Fiber, AT&T, an outage, billing, installation, buried line, technician, equipment return, portal, Customer Advocacy, or another department; the general location or service involved; the support route used; the approximate response time; and whether the matter was resolved.
Do not publish full account, invoice, order, circuit, service, contract, payment-card, bank, employee, claim, or ticket numbers; network diagrams; IP addresses; passwords; verification codes; security credentials; Social Security numbers; tax records; home addresses; precise infrastructure locations; confidential pricing; medical information; private telephone numbers or email addresses; employment records; or private employee and contractor details.
Do not upload signed contracts, installation agreements, invoices, account screenshots, service maps, or photographs containing sensitive customer or network information. Redact personal, financial, security, and proprietary data before describing a documented issue.
Do not identify individual technicians, representatives, account managers, employees, or contractors unnecessarily or publish unsupported accusations that an identifiable person or company committed fraud, theft, sabotage, discrimination, a crime, or intentional misconduct. Describe firsthand events, available records, and the resolution requested without presenting an unverified legal or technical conclusion as established fact.
Spam, threats, doxxing, impersonation, discriminatory content, retaliation demands, unsupported criminal accusations, confidential contracts, proprietary network information, private employee details, and sensitive financial, security, employment, or personal information may be edited, withheld, or removed.